Add `REPAIR_TIMING_MAX_PASSES_PER_ITER` parameters

[eszpotanski]

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This PR adds new variables for max number of repairs per iteration in rsz::repairSetup, introduced in https://github.com/The-OpenROAD-Project/OpenROAD/pull/6244. It also sets the best found values for a few designs.

It adds:

• FP_REPAIR_TIMING_MAX_PASSES_PER_ITER - max number of repairs per iteration during floorplan,
• CTS_REPAIR_TIMING_MAX_PASSES_PER_ITER - max number of repairs per iteration during CTS,
• GRT_REPAIR_TIMING_MAX_PASSES_PER_ITER - max number of repairs per iteration during GRT.